Public Water Systems
7,249 active public water systems in CA, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| INN AT PARK WINTERS | WINTERS, CA | 42 | 2 | — |
| PAVESTONE | WINTERS, CA | 42 | 117 | — |
| HARTLEY MUTUAL WATER SYSTEM | CHICO, CA | 41 | 11 | — |
| SUNSET MOULDING CHICO | CHICO, CA | 41 | 0 | — |
| BAY STANDARDS | BRENTWOOD, CA | 41 | 5 | — |
| FRESNO MEMORIAL GARDENS | FRESNO, CA | 41 | 0 | — |
| LANGTRY FARMS | MIDDLETOWN, CA | 41 | 16 | — |
| HENRY MILLER RECLAMATION DISTRICT | DOS PALOS, CA | 41 | 0 | — |
| BRANDON CREEK MWS | CARMEL, CA | 41 | 148 | — |
| FANTESCA WINERY | ST. HELENA, CA | 41 | 20 | — |
| HAYNES BOARD & CARE HOME | LODI, CA | 41 | 17 | — |
| ANGELO LANE WATER COMPANY | GILROY, CA | 41 | 19 | — |
| OAK VALLEY ACRES P.O.A. | YREKA, CA | 41 | 12 | — |
| ZICHICHI WINERY | HEALDSBURG, CA | 41 | 8 | — |
| FOOTHILL APARTMENTS | PORTERVILLE, CA | 41 | 10 | — |
| CALTRANS VISALIA MAINTENANCE STATION | FRESNO, CA | 41 | 31 | — |
| ZONE 7 WATER AGENCY | LIVERMORE, CA | 40 | 6 | — |
| SUTTER PINES MHP | SUTTER CREEK, CA | 40 | 7 | — |
| IONE BAND OF MIWOK INDIANS | PLYMOUTH, CA | 40 | 9 | — |
| MOUNTAIN VILLAGE HOMEOWNER'S ASSOC | FOREST RANCH, CA | 40 | 81 | — |
| PG&E: PHILBROOK DAM | CHICO, CA | 40 | 2 | — |
| CRAIN PARK WATER SYSTEM | PARADISE, CA | 40 | 0 | — |
| RICHMOND HUNTING CLUB-MAXWELL | PLEASINGTON, CA | 40 | 4 | — |
| ECHO ROAD GROUP WATER ASSOC | OAKLAND, CA | 40 | 15 | — |
| J R SIMPLOT COMPANY | HELM, CA | 40 | 41 | — |
| COVE ISLAND RESORT | FRESNO, CA | 40 | 29 | — |
| FOUR BAR C FARMS | FRESNO, CA | 40 | 9 | — |
| PG&E HELMS SUPPORT FACILITY | AUBERRY, CA | 40 | 48 | — |
| OPEN SKY RANCH | KINGSBURG, CA | 40 | 1 | — |
| COUNTRY LEISURE MOBILE ESTATES | OAKDALE, CA | 40 | 1 | — |
| KNEELAND SCHOOL | KNEELAND, CA | 40 | 12 | — |
| GOLD ROCK RANCH | WINTERHAVEN, CA | 40 | 60 | — |
| IMPERIAL LAKES INC. | ALPINE, CA | 40 | 21 | — |
| CALVARY CHAPEL CHURCH | EL CENTRO, CA | 40 | 6 | — |
| DEEP SPRINGS COLLEGE | DYER, CA | 40 | 17 | — |
| DARWIN COMMUNITY SERVICE DISTRICT | DARWIN, CA | 40 | 76 | — |
| GRANITE CONSTRUCTION WATER SYSTEM | BAKERSFIELD, CA | 40 | 23 | — |
| FOUR WINDS WATER SYSTEM | BAKERSFIELD, CA | 40 | 78 | — |
| RIVERVIEW HOMEOWNERS ASSOCIATION | BAKERSFIELD, CA | 40 | 33 | — |
| HASSON O S | BAKERSFIELD, CA | 40 | 20 | — |
| WALL WATER | NICE, CA | 40 | 26 | — |
| USFS-MIDDLE CREEK CG | UPPER LAKE, CA | 40 | 24 | — |
| CLEAR CREEK LATTER DAY SAINTS CHURCH | RENO, CA | 40 | 3 | — |
| LNF-EAGLE LAKE RANGER STATION | SUSANVILLE, CA | 40 | 8 | — |
| JOHNSTONVILLE WATER SYSTEM | SUSANVILLE, CA | 40 | 16 | — |
| COARSEGOLD SELF SERVE | COARSEGOLD, CA | 40 | 37 | — |
| THE VILLAGE | COARSEGOLD, CA | 40 | 16 | — |
| BLACK HAWK LODGE | COARSEGOLD, CA | 40 | 27 | — |
| PG&E OAKHURST SERVICE CENTER | SAN RAMON, CA | 40 | 20 | — |
| FARMERS MARKET | MADERA, CA | 40 | 16 | — |